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synth_xilinx: Initial Spartan 6 block RAM inference support.

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This commit is contained in:
Marcin Kościelnicki 2019-07-02 14:28:35 +02:00
parent 9112850800
commit ce250b341c
9 changed files with 598 additions and 8 deletions
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84
techlibs/xilinx/xc6s_brams.txt Normal file
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bram $__XILINX_RAMB8BWER_SDP
init 1
abits 8
dbits 36
groups 2
ports 1 1
wrmode 0 1
enable 1 4
transp 0 0
clocks 2 3
clkpol 2 3
endbram
bram $__XILINX_RAMB16BWER_TDP
init 1
abits 9 @a9d36
dbits 36 @a9d36
abits 10 @a10d18
dbits 18 @a10d18
abits 11 @a11d9
dbits 9 @a11d9
abits 12 @a12d4
dbits 4 @a12d4
abits 13 @a13d2
dbits 2 @a13d2
abits 14 @a14d1
dbits 1 @a14d1
groups 2
ports 1 1
wrmode 0 1
enable 1 4 @a9d36
enable 1 2 @a10d18
enable 1 1 @a11d9 @a12d4 @a13d2 @a14d1
transp 0 0
clocks 2 3
clkpol 2 3
endbram
bram $__XILINX_RAMB8BWER_TDP
init 1
abits 9 @a9d18
dbits 18 @a9d18
abits 10 @a10d9
dbits 9 @a10d9
abits 11 @a11d4
dbits 4 @a11d4
abits 12 @a12d2
dbits 2 @a12d2
abits 13 @a13d1
dbits 1 @a13d1
groups 2
ports 1 1
wrmode 0 1
enable 1 2 @a9d18
enable 1 1 @a10d9 @a11d4 @a12d2 @a13d1
transp 0 0
clocks 2 3
clkpol 2 3
endbram
match $__XILINX_RAMB8BWER_SDP
min bits 4096
min efficiency 5
shuffle_enable B
make_transp
or_next_if_better
endmatch
match $__XILINX_RAMB16BWER_TDP
min bits 4096
min efficiency 5
shuffle_enable B
make_transp
or_next_if_better
endmatch
match $__XILINX_RAMB8BWER_TDP
min bits 4096
min efficiency 5
shuffle_enable B
make_transp
endmatch